--- title: "Nano Banana 2 Generator (Reasoning, Grounding, 4K)" url: https://imagev2.me/nano-banana-2 canonical: https://imagev2.me/nano-banana-2 locale: "en" --- # Nano Banana 2 AI Image Generator nano-banana-2 · newest · reasoning + grounding Newest Nano Banana 2 with reasoning, real-world grounding, and 4K output. Accepts up to 14 reference images and 20K-character prompts for the most ambitious generations. Nano Banana 2 is the newest entry in the Banana family, released as part of the Gemini 3 Image Preview wave. It is the only Banana variant that supports prompt-level reasoning, real-world grounding, prompts up to 20K characters, and up to 14 reference images. The reasoning capability means Banana 2 can parse a long, structured brief, resolve contradictions between referenced elements, and produce coherent multi-element compositions that earlier Banana variants could not handle reliably. On imagev2.me, the editor opens with Banana 2 already selected. Start generating with the latest model and skip the engine-picker step. ## Why Nano Banana 2 Is Different ### Reasoning over prompts Banana 2 plans the composition before rendering. Long, structured prompts that confused earlier Banana versions now produce coherent layouts, captions, and chained instructions. ### Real-world grounding References to actual places, products, and recognizable styles render with notably less hallucination than Pro or fast. Useful for product imagery and editorial. ### Up to 14 reference images Highest reference cap in the Banana family (14 images; GPT Image 2 supports up to 16). Stack characters, locations, brand palettes, and layout boards together: Banana 2 weights them as guidance. ### 20K-character prompts The longest prompt window of any Banana variant. Brief documents, scene scripts, or chained-edit instructions all fit in a single submission. ## Nano Banana 2 vs Pro, GPT Image 2, Imagen 4 Where Banana 2 leads the newest-generation image models in 2026. | Spec | Nano Banana 2 | Nano Banana Pro | GPT Image 2 | Imagen 4 | |---|---|---|---|---| | Reasoning prompts | Native | Limited | Partial | Limited | | Real-world grounding | Strong | Moderate | Strong | Strong | | Reference images | Up to 14 | Up to 8 | Up to 16 | Up to 4 | | Prompt window | 20K chars | 10K chars | 32K chars | 8K chars | | Max resolution | 4K | 4K | 4K | 2K | | Cost (4K) | ≈ $0.30 | ≈ $0.40 | ≈ $0.40 | ≈ $0.20 | | Free trial | Free credits | Free credits | Free credits | No | Costs reflect imagev2.me Large Pack pricing for Banana variants. Imagen 4 / GPT Image 2 / Midjourney pricing taken from public rate cards as of May 2026. ## How to Use Nano Banana 2 ### Land on Banana 2 - Banana 2 is preselected by default - Stay on Text → Image (default) - Write a long, structured prompt ### Reference-guided - Switch to Image → Image - Stack up to 14 reference images - Banana 2 reasons over them as a board ### Compare candidates - Default ×2 batch returns two parallel renders - Bump to ×4 to compare reasoning paths - Iterate by sharpening the prompt ## Fields Nano Banana 2 Uses | Engine | Model | Inputs | |---|---|---| | Nano Banana 2 · Text → Image | nano-banana-2 | prompt, aspect_ratio, resolution, output_format | | Nano Banana 2 · Image → Image | nano-banana-2 | prompt, image_input, aspect_ratio, resolution, output_format | | Nano Banana Pro (alternative) | nano-banana-pro | prompt, image_input, aspect_ratio, resolution, output_format | | Nano Banana fast (alternative) | nano-banana | prompt, image_size, output_format | ## Nano Banana 2 FAQ ### What is Nano Banana 2? Nano Banana 2 (model ID: nano-banana-2) is the newest entry in the Banana / Gemini 3 Image Preview family. It is the first Banana with reasoning, the longest prompt window (20K chars), and the highest reference cap (14 images), at 4K output. ### Is Nano Banana 2 the same as Gemini 3 Image? Banana 2 is the production-named model in the Gemini 3 Image Preview release. The model ID used on imagev2.me is nano-banana-2; the marketing name in the upstream blog posts is Gemini 3 Image Preview. ### When should I use Banana 2 over Pro? Pick Banana 2 when your prompt is long, structured, or contains real-world references (people, places, products) that the model needs to ground. Pick Pro when text rendering and 4K detail dominate the brief. ### How many reference images does Banana 2 accept? Up to 14 — the highest in the Banana family. References are optional: provide 0 for pure text-to-image, or stack up to 14 for layout / style / character / brand boards. ### Can Banana 2 do image-to-image edits? Yes. Switch to Image → Image and the same nano-banana-2 model handles editing. Unlike the original fast Banana, you do not have to swap to a separate edit model. ### What is the prompt length limit? 20,000 characters — long enough to drop a brief document, a scene script, or a chained-edit instruction in one submission. Pro is 10K, fast is 5K. ### Is Nano Banana 2 free to try? Yes. imagev2.me gives every account free credits, enough for two Banana 2 images at 1K (4 credits each) plus a fast draft. No card required. ## Ready for the newest Banana? Sign up, claim free credits, and put Nano Banana 2 reasoning to the test. [Create with Nano Banana 2 →](https://imagev2.me/nano-banana-2)